Need ahi.device v5.7 for PPC

[x56h34]

That's the MorphOS version. Don't use it as it won't work.
68k only for OS3.x, whether you have a PPC card or not.

[x56h34]

The AHI installer is universal for MOS and 68k amigas, IIRC. The creator simply wanted to make things simple for himself and thus he included both devices in one archive. It's not very clear that classic Amiga users should not use the PPC version as it is for exclusive MOS usage, however Elbox couldn't do anything about it as that's how the AHI installer package comes by default.